Monte Carlo simulation is used to generate \(\tau ^{+}\tau ^{-}\)  events at different masses. The events are generated using MadGraph_aMC@NLO 2.5.5 [1]}, and then showered using PYTHIA 8.226 [2]}[3]}. The detector response is modeled using a simplified fast simulation (DELPHES 3.4.1 [4]}) of the phase-0 CMS detector with the acceptance and expected performance of the detector [5]}. No additional proton-proton collisions (pile-up) are simulated.
